A preliminary introduction to the study of entomologyTogether with a chapter on remedies, or methods that can be used in fighting injurious insects; insect enemies of the apple tree and its fruit, and the insect enemies of small grains . APPLE TEEE AND ITS FRUIT. 147 kerosene emulsion at the time when the young are hatcliing and wan-dering about over the trees. One or two careful sprayings at such. Fig. 14.—Oyster-sheU Bark-louse {Mytilaspis pomorum): 1, egg; 2, larvawhen first hatched; 3, larva when forming scale; 4, scale after secondplate is formed ; 5, 6, forms of louse taken from scale; 7
A preliminary introduction to the study of entomologyTogether with a chapter on remedies, or methods that can be used in fighting injurious insects; insect enemies of the apple tree and its fruit, and the insect enemies of small grains . APPLE TEEE AND ITS FRUIT. 147 kerosene emulsion at the time when the young are hatcliing and wan-dering about over the trees. One or two careful sprayings at such. Fig. 14.—Oyster-sheU Bark-louse {Mytilaspis pomorum): 1, egg; 2, larvawhen first hatched; 3, larva when forming scale; 4, scale after secondplate is formed ; 5, 6, forms of louse taken from scale; 7, fully formedscale—all greatly enlarged. [After Riley.] times will effectually destroy the insects. The use of alkali washes isalso strongly recommended as remedies for this and other coccids. THE SCURFY APPLE-TREE BARK-LOUSE. {Chionaspis furfurus Fitch.) A second species of scale also works on our apple trees here in thestate. It is the one known to the entomologist as Chionaspis second Apple-tree Bark-louse can be distinguished from the onejust treated, which is brownish, by its dirty white color. Still otherspecies of scale insects are known to attack the apple in other regions.(See list of apple insects on preceding pages.) REMEDIES. As a rule these lice are kept pretty well within bounds by a largenumber of parasites and predaceous insects that prey upon both theyoun
Size: 2239px × 1116px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1894
